DetailsThe Techno Gears sets are the perfect way to encourage youngsters to build. With 60+ colorful construction pieces, power motor, the kit includes everything your vehicle enthusiast needs to build their own moving and working off road racer. The mechanics of these Techno Gear sets include gears and will introduce and allow them to experience the science of gear ratio. These products align with and support STEM (Science, Technology, Engineering and Math standards). Requires two “AA” batteries (not included). Ages 6+ years.